摘要
根据煤系地层赋存的不均一性和巷道围岩变形破坏的不均衡性，提出了巷道围岩弱结构与弱结构体的概念：在数值模拟及现场实测的基础上，分析了不同类型、断面形状及围岩应力状态下的岩性弱结构巷道塑性区的分布特征，以及岩性弱结构巷道围岩松动圈的发育特征。研究结果为岩性弱结构巷道的非均称控制提供了依据。
According to the occurrence of the inhomogeneity and non-equilibrium for the failure deformation of roadways surrounding rocks in the coal measures strata, the concepts of weak structure and weak structure body of roadways of surrounding rocks are presented. Based on numerical simulation and in-situ observation, the distribution characters of plastic areas, in which the different types, section shapes and stress states of surrounding rocks are considered, are analyzed; and the growth characters of fractured zone of roadways with weak lithology structure are studied. The achieved results can provide references to the non-harmonious control on weak lithology structure roadways.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2005年第A01期5275-5280,共6页
Chinese Journal of Rock Mechanics and Engineering
基金
山东省自然科学基金资助项目（Q99F06）
关键词
岩石力学
岩性弱结构
巷道
有限元
塑性区
松动圈
rock mechanics
weak lithology structures
roadways
finite element method（FEM）
plastic area
fractured zone
